Examine the consumable parts

Examine and clean consumable parts of the XPR® plasma cutting system, look for signs of damage and correct lubrication of O-rings. Replace any consumable parts that have signs of damage and make sure that all components are clean before assembly.

Examine the consumable parts for signs of damage.

Table 1. Inspection tasks for consumable parts
Inspect	Look for	Action if found
Shield cap	Erosion Cracks Melted or missing surfaces Damaged O-rings	Replace the shield cap.
	Molten metal attached	If there is no damage to the shield cap, you can remove the molten metal. If there is damage, replace the shield cap.
	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
Shield	A center hole that is not circular Damage O-rings	Replace the shield.
	Over-lubricated O-rings	Use a clean, lint-free cloth to remove unwanted lubricant.
	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
Nozzle retaining cap	Damage Bad cut quality after replacing other consumables Damage O-rings	Replace the nozzle retaining cap.
Nozzle retaining cap	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
Nozzle	Erosion Blocked gas holes A center hole that is not circular Damaged O-rings	Replace the nozzle.
	Over-lubricated O-rings	Use a clean, lint-free cloth to remove unwanted silicone lubricant.
	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
Swirl ring	Chips or cracks Blocked gas holes Damaged O-rings	Replace the swirl ring.
	Dirt or debris	Use compressed air to remove dirt or debris. Replace the swirl ring if you find signs of damage.
	Over-lubricated O-rings	Use a clean, lint-free cloth to remove unwanted silicone lubricant.
	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
Electrode	Damaged O-rings	Replace the electrode. Use the electrode torque tool (429013) to correctly tighten the electrode.
	Over-lubricated O-rings	Use a clean, lint-free cloth to remove unwanted lubricant.
	Dry O-rings	Apply a thin layer of silicone lubricant (027055) to O-rings that are dry.
	Emitter wear For guidance about how to identify emitter wear, refer to Examine the electrode for emitter wear.	Replace the electrode and nozzle. Use the electrode torque tool (429013) to correctly tighten the electrode.

Note:

If an electrode needs replacement because of emitter wear, always replace the nozzle at the same time as the electrode. Use the electrode torque tool (429013) to correctly tighten the electrode.

Clean the consumable parts that do not need replacement:
1. Use a clean, lint-free cloth to wipe the internal and external surfaces.
2. Use compressed air to remove debris from internal and external surfaces.
  
  The nozzle retaining cap can keep debris. Make sure to fully clean the retaining cap thoroughly.
3. Use clean water if you choose to wash consumables parts in water.
  
  Use water from the faucet to soak or rinse them. Never use the water from a cutting table to wash consumable parts. Cutting table water has contaminants that will cause damage to the consumable parts.
Apply a thin layer of silicone lubricant (027055) to each O-ring on all consumable parts.

The O-rings should be shiny. Too much lubricant can prevent gas flow. Remove excess lubricant if found.
Install the consumables on the torch as shown.

Examine the torch receptacle.